Head-Mounted Display Device Containing Relay Optical System Between Image Display Unit and Light Guide Member and Display System

3. The head-mounted display device according to claim 1, wherein a center of the image display is arranged so as to overlap with a temporal bone of the wearer.

4. The head-mounted display device according to claim 1, wherein a display housing that houses the image display is located at a position of an occipital bone of the wearer.

5. The head-mounted display device according to claim 1, wherein the relay optical structure includes at least a graded-index lens.

6. The head-mounted display device according to claim 1, wherein the relay optical structure includes at least an image guide fiber.

7. The head-mounted display device according to claim 1, further comprising a condensing optical structure arranged between the image display and the relay optical structure to condense the image light emitted from the image display.

8. The head-mounted display device according to claim 1, further comprising an optical structure to bend the image light emitted from the image display and cause the image light to enter the relay optical structure.

10. The head-mounted display device according to claim 1, further comprising a bone-conduction speaker provided in a display housing that houses the image display to cause a bone of the wearer to vibrate to transfer sound.

12. The head-mounted display device according to claim 11, wherein the frame is connected to the housing at a position close to a nose of the wearer when the wearer wears the head-mounted display device, in a portion where the light guide plate is housed, of the housing.

13. The head-mounted display device according to claim 11, wherein the frame houses at least a part of the housing.

15. The head-mounted display device according to claim 14, wherein the receiver receives at least one of the image data and voice data from the external device based on a V-by-One HS system.

17. The head-mounted display device according to claim 1, wherein the relay optical structure arranged between the image display and the light guide plate to relay the image light from the image display to the light guide plate, and form an intermediate image at least twice before the image light enters the light guide plate.